/*
 * ═══════════════════════════════════════════════════════════════
 * SITE NAV — shared across all pages
 * a4 brand fixed top-left, horizontal links top-right
 * ═══════════════════════════════════════════════════════════════
 */

/* Font face (duplicated from index for standalone pages) */
@font-face {
    font-family: 'SaiIndira';
    src: url('/fonts/SaiIndira.woff2') format('woff2');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

.site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.9rem 2rem;
    background: rgba(0, 0, 0, 0.92);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

/* ── a4 brand — left side ── */
.site-nav__brand {
    text-decoration: none;
    display: inline-flex;
    align-items: baseline;
    gap: 0;
    transition: opacity 0.2s ease;
}

.site-nav__brand:hover {
    opacity: 1;
}

.site-nav__a4 {
    font-family: 'Space Mono', monospace;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: #888;
    transition: color 0.25s ease, text-shadow 0.25s ease;
}

.site-nav__brand:hover .site-nav__a4 {
    color: #FFD700;
    text-shadow: 0 0 12px rgba(255, 215, 0, 0.35);
}

.site-nav__tamil {
    font-family: 'SaiIndira', 'Noto Serif Tamil', 'Tamil Sangam MN', serif;
    font-size: 0.95rem;
    color: #ccc;
    transition: color 0.25s ease;
}

.site-nav__brand:hover .site-nav__tamil {
    color: #FFD700;
}

/* ── horizontal links — right side ── */
.site-nav__links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.site-nav__link {
    font-family: 'Space Mono', monospace;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    text-decoration: none;
    color: #888;
    position: relative;
    padding: 0.25rem 0;
    transition: color 0.25s ease, text-shadow 0.25s ease;
}

.site-nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 1px;
    transform: translateX(-50%);
    transition: width 0.25s ease;
}

.site-nav__link:hover {
    color: #fff;
}

.site-nav__link:hover::after {
    width: 100%;
}

/* Accent colours per link */
.site-nav__link--questionnaire       { color: #FFD700; }
.site-nav__link--questionnaire:hover { text-shadow: 0 0 10px rgba(255, 215, 0, 0.4); }
.site-nav__link--questionnaire::after { background: #FFD700; }

.site-nav__link--about       { color: #ccc; }
.site-nav__link--about:hover { color: #fff; text-shadow: 0 0 10px rgba(255, 255, 255, 0.3); }
.site-nav__link--about::after { background: #fff; }

.site-nav__link--contact       { color: #ff69b4; }
.site-nav__link--contact:hover { text-shadow: 0 0 10px rgba(255, 105, 180, 0.4); }
.site-nav__link--contact::after { background: #ff69b4; }

.site-nav__link--privacy       { color: #888; }
.site-nav__link--privacy:hover { color: #ccc; }
.site-nav__link--privacy::after { background: #888; }

/* Active page indicator */
.site-nav__link--active {
    color: #fff !important;
}

.site-nav__link--active::after {
    width: 100%;
}

/* ── body offset so content isn't hidden under fixed nav ── */
body.has-site-nav {
    padding-top: 3rem;
}

/* ── mobile ── */
@media (max-width: 600px) {
    .site-nav {
        padding: 0.75rem 1rem;
    }

    .site-nav__links {
        gap: 1rem;
    }

    .site-nav__link {
        font-size: 0.6rem;
        letter-spacing: 0.08em;
    }
}

@media (max-width: 380px) {
    .site-nav__links {
        gap: 0.6rem;
    }

    .site-nav__link {
        font-size: 0.55rem;
    }
}